On a mission to free dragons from Dragon Hunters, Hiccup gets attacked by an unknown dragon and gets deathly ill. The Dragon Riders need to find out what is making their leader and friend sick and find a cure before it's too late.
On a mission to free dragons from Dragon Hunters, Hiccup gets attacked by an unknown dragon and gets deathly ill. The Dragon Riders need to find out what is making their leader and friend sick and find a cure before it's too late.
Viggo lies to everyone and ambushes both Hiccup and Astrid. Seeking revenge he leaves Hiccup badly injured and takes Astrid captured with him making her his pet. Weeks pass by and no sign of Astrid i...